I have one sugar maple tree in my yard. It's about 18" across. Could I get enough from it to make some syrup?

If it has a full crown the sugar content should be high. Depends on the year bit probably 1-3 qts.

Tree's about 20 years old at least.

We hope that today and Wednesday it will run. We have around 1,000 taps also but only 200 gallons collected to date. We had some sun and over 40 but strong winds kept the real temp down for a couple days. I have quite a bit of carryover and am glad I do as if we get a late start and when those trees bud (daylight oriented) the sap goes bitter and we are done.

Bryce

Hey Zim the evaporater will produce 100 gallons of syrup an hour at full capacity. I never think too get pics when I am there but the stainless steel looks expensive lol.

Absolutely. I used to tap a single Sugar Maple in our yard as a kid. It had a very high sugar content and I would only have to reduce a couple canning kettles of sap to get a years supply of syrup.

If you have an average sized maple for tapping one tree with 1-2 taps probably will give you 10-15 gallons of sap. With an average sugar percentage of say 2.5 you would 3 pints or a quart and a half but it varies a lot from tree to tree and season to season.

Bryce

Third season making syrup. Two batches so far here in SW WI. 25 pints on 3/7 and 30 on 3/14. Sap ran crazy yesterday and today, 300 gallons between Monday and Tuesday on 48 taps so planning to boil sap on for St Patty's Day. This year I went to all tubes because my maples are on a steep hillside.

Yip. But, remember that 10-15 gallons is for a full season, I suspect you may have lost a bit of that if you haven't tapped yet. Typically, the tree should to be a bit bigger (22-24 inch} for that second tap. So assume 10 gallons per single tap, and maybe 80% of season. That's 8 gallons= 32 quarts = 64 pints of sap. At a 40:1 sap to syrup ratio 1.6 pints of syrup. I'd do it in a stock pot over a couple concrete blocks.